tree e441b11c2ebe22618a96bb6db65ff88d66fb5753
parent 06585c497b55045ec21aa8128e340f6a6587351c
author Marcelo Diop-Gonzalez <marcelo827@gmail.com> 1610729680 -0500
committer Jens Axboe <axboe@kernel.dk> 1610730148 -0700

io_uring: flush timeouts that should already have expired

Right now io_flush_timeouts() checks if the current number of events
is equal to ->timeout.target_seq, but this will miss some timeouts if
there have been more than 1 event added since the last time they were
flushed (possible in io_submit_flush_completions(), for example). Fix
it by recording the last sequence at which timeouts were flushed so
that the number of events seen can be compared to the number of events
needed without overflow.

Signed-off-by: Marcelo Diop-Gonzalez <marcelo827@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>